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2 years ago

Please answer 5-10 and get brainliest

Mathematics

2 answers:

kaheart [24]2 years ago

8 0

Hey! I hope this helps you!

Answer:

5. B

6. F

7. D

8. J

9. A

10. -1

Step-by-step explanation:

5. Putting a parentisis around an expression that only uses one symbol (addition in this case) doesn't affect the way it gets solved. So, the expressions 4 + 2 + x and (4 + 2) + x are equivalent.

6. There are 4 drinks, 1 hamburger, and 2 fries pictured. The expression uses d for drinks, h for hamburger, and f for fries. So 4d + h + 2f is the total order.

7. 140

2. 70

2. 35

5. 7 Prime Factorization = 2 squared • 5 • 7

8. J cannot be writen as an expression because it includes an equals sign. An expression doesn't contain an equals sign. An equation contains an equals sign.

9. Using the distributive property we can say that 3(2x + 5) is equal to 6x + 5. First we multiply 3 • 2x = 6x. Then we multiply 3 • 5 = 15. Then we add 6x + 15.

10. 9 + 3 ( 10 ÷ 2) - 5 squared

9 + 3 (5) - 5 squared

9 + 3 (5) - 25

9 + 15 - 25

24 - 25

-1

Vlad1618 [11]2 years ago

4 0

•5 is B
•6 is F
•7 is D
•8 is J
•9 is A
•10 is -1

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Marizza181 [45]

The answer is False!!!

3 0

3 years ago

The answer choices are 11 1 2.48 6

Fudgin [204]

Answer:

The ball reached its maximum height of ( $11\ yards$ ) in ( $1\ second$ ).

Step-by-step explanation:

This question is essentially asking one to find the vertex of the parabola formed by the given equation. One could plot the equation, but it would be far more efficient to complete the square. Completing the square of an equation is a process by which a person converts the equation of a parabola from standard form to vertex form.

The first step in completing the square is to group the quadratic and linear term:

$h(t)=-5t^2 + 10t + 6\\\\h(t) = (-5t^2 + 10t) + 6$

Now factor out the coefficient of the quadratic term:

$h(t)=-5(t^2 -2t) + 6$

After doing so, add a constant such that the terms inside the parenthesis form a perfect square, don't forget to balance the equation by adding the inverse of the added constant term:

$h(t) = -5(t^2 -2t) + 6\\\\h(t) = -5(t^2 -2t + 1 -1 ) + 6$

Now take the balancing term out of the parenthesis:

$\\\\h(t)=-5(t^2 -2t + 1) + 6 + ((-1)(-5))$

Simplify:

$h(t) = -5(t^2 -2t + 1) + 6 + 5\\\\h(t) = -5(t-1)^2 + 11$

The x-coordinate of the vertex of the parabola is equal to the additive inverse of the numerical part of the quadratic term. The y-coordinate of the vertex is the constant term outside of the parenthesis. Thus, the vertex of the parabola is:

$(1, 11)$

8 0

3 years ago

A rectangular building with a square base is being designed to minimize heat loss. The building designers state that the volume

Arturiano [62]

Answer:

y = 4000/x²

Step-by-step explanation:

The volume of the building is expressed as;

V = x²y where;

x is the length and width of the base.

y is the height of the building

Given

Volume V = 4000m³

Substitute the given volume into the equation as shown;

4000 = x²y

Make y the subject of the formula by dividing both sides by x²

4000/x² = x²y/x²

4000/x² = y

Rearrange

y = 4000/x²

Hence equation for y, the height of the building, in terms of x, the length and width of the base is expressed as y = 4000/x²

8 0

2 years ago

Find a solution to the linear equation −2x−2y=8 by filling in the boxes with a valid value of x and y.Provide your answer below:

inna [77]

Given

$-2x-2y=8$

To find a solution for the linear equation, the first step is to write the equation in slope-intercept form:

-Pass the x-term to the right side of the equation by applying the opposite operation to both sides of the equal sign:

$\begin{gathered} -2x+2x-2y=8+2x \\ -2y=2x+8 \end{gathered}$

-Divide both sides by -2:

$\begin{gathered} \frac{-2y}{-2}=\frac{2x}{-2}+\frac{8}{-2} \\ y=-x-4 \end{gathered}$

Once you have expressed the equation of the line in slope-intercept form, replace it with any value for x and calculate the corresponding value of y, for example, x=2

$\begin{gathered} y=-(2)-4 \\ y=-2-4 \\ y=-6 \end{gathered}$

One solution for the linear equation is x=2 and y=-6, you can check the solution by replacing the values on the original equation, with both values the result should be 8:

$\begin{gathered} -2x-2y \\ -2\cdot2-2\cdot(-6) \\ -4+12=8 \end{gathered}$

As you can see the values are a valid solution for the linear equation.

So the solution is:

$-2(2)-2(-6)=8$

6 0

1 year ago

Jordan has $55.She earns 67 by doing chores. How much money does Jordan have now ?

rosijanka [135]

Add the values, then you get the answer.

55+67 = ?

55
+ 67
------------
122

Final answer: $122 is how much Jordan has.

5 0

3 years ago

Read 2 more answers